0071 00-6 TM 5-5420-278-24&P 0071 00 PUMP MAINTENANCE (Contd) ASSEMBLY NOTE Apply fluid to piston housing, piston rod, valves, valve block bores, spool valve, cap valves, seals, and O-rings at assembly. Apply teflon pipe sealant to all male pipe threads of fittings at assembly. 1. If removed, install name plate (53) on pump reservoir (40) with four new drivescrews (54). 2. Install filter element (43) in pump reservoir (40) and tighten with filter wrench. 3. Install access cover (45) on pump reservoir (40) with new O-ring (44), four new lockwashers (47), and screws (46). 4. Install new gasket (41) and screw plug (42) on pump reservoir (40). 5. Install new gasket (35) and valve housing (34) on pump reservoir (40). 6. Install case valve (33), pressure spring (32), and screw (31) on valve housing (34) and turn screw (31) in halfway on valve housing (34). 7. Install new gasket (30) and nut (29) on screw (31) and tighten nut (29). 8. Install new gasket (28) and cap nut (27) on screw (31). 9. Install new gasket (25), if discarded, and fill plug with dipstick (26) on pump reservoir (40). 10. Install valve block (55) on pump reservoir (40) with two new O-rings (52) and four screws (67). Tighten screws (67) 25-lb ft (34-N• m). 11. Install plate (51) and angle (48) on bottom of valve block (55) with two washers (50) and screws (49). 12. Install check valves (65) and (66) on piston housing (68). 13. Place new O-rings (63) and (64) on piston housing (68) and install piston housing (68) on valve block (55) with spanner wrench. 14. Install check valve (80) and new O-ring (69) on piston rod (79). 15. Install new scraper ring (74) on threaded ring (73). 16. Install piston rod (79) in piston housing (68) with new O-ring (70), sleeve (71), new O-ring (72), and threaded ring (73). Tighten threaded ring (73) on piston housing (68). 17. Install case valve (56), pressure spring (57), and screw (58) on valve block (55) and turn screw (58) in halfway on valve block (55). 18. Install new gasket (59) and nut (60) on screw (58) and tighten nut (60). 19. Install new gasket (61) and cap nut (62) on screw (58). 20. Install new O-ring (13) and test connector (12) on valve block (55). 21. If removed, install instruction plate (13) on plate with four new drivescrews (12) and install plate (16) on valve block (55) with two new lockwashers (15) and screws (14). 22. Install new O-ring (19) on spool valve assembly (18) and slide spool valve (18) in valve block (55). 23. Install new O-ring (17) and spool valve cover (39) on valve block (55) with four new lockwashers (38) and screws (37). 24. Install control block (22) on spool valve assembly (18) with spring pin (20). 25. Install spring (36) and control lever (23) on control block (22) with spring pin (21). 26. Install knob (24) on control lever (23). 27. Install lever support (83) on valve block (55) with four new lockwashers (11) and screws (10). Tighten screws (10) 15 lb ft (20-N• m). 28. Install two straps (9) on support lever (83) with screw (78), washer (7), and nut (8). 29. Install spacer (84) between straps (9) with washer (77), screw (76), and nut (5). Tighten nut (5) and install new cotter pin (6). 30. Install pump lever (1) between spraps (9) with screw (75), washer (3), and nut (4). Do not overtighten nut (4). 31. Install pump lever (1) on piston rod (79) with pin (2), washer (85), and new cotter pin (86). 32. Install hydraulic pump (WP 0035 00).